01 / Carbon & Alloy Steel

Carbon Steel Bars

Round Bar | Square Bar | Flat Bar | Hexagonal Bar

Xtone Metal supplies carbon and alloy steel bars in round, square, flat and hexagonal profiles for machining, fabrication, construction and industrial applications. We offer a wide range of grades, sizes and lengths to meet different engineering and manufacturing requirements.

Carbon Steel Bars - Round Bar, Square Bar, Flat Bar and Hexagonal Bar
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Carbon Steel Bar
02 / Product Types

Carbon Steel Bar Types

Xtone Metal supplies carbon steel bars in round, square, flat and hexagonal profiles for machining, fabrication, construction and industrial applications.

01
Carbon Steel Round Bar
Carbon Steel Bar

Round Bar

Carbon steel round bars are widely used for machining, shafts, fasteners, structural components and general engineering applications.

Dia. 5–250 mm
02
Carbon Steel Square Bar
Carbon Steel Bar

Square Bar

Carbon steel square bars provide four flat sides and are commonly used for machining, fabrication, brackets, frames and industrial components.

5–250 mm
03
Carbon Steel Flat Bar
Carbon Steel Bar

Flat Bar

Carbon steel flat bars are supplied in a wide range of widths and thicknesses for fabrication, structural work, machinery and general industrial applications.

W 12–300 mm
04
Carbon Steel Hexagonal Bar
Carbon Steel Bar

Hexagonal Bar

Carbon steel hexagonal bars are suitable for automatic machining, fasteners, nuts, fittings and precision engineering components.

S8–S70 mm
03 / Material Grades

Carbon Steel Bar Grades

A selection of commonly requested carbon steel and alloy steel grades for machining, fabrication and industrial applications.

Low Carbon Steel

General Purpose Grades

A36 1018 1020 Q235 S235JR
Medium Carbon Steel

Higher Strength Grades

1045 C45 S45C 45#
Alloy Steel

High Strength Grades

4130 4140
Free-Cutting Steel

Machining Grades

12L14 1215
Need another grade?
Other grades are available upon request.
04 / Technical Data

Carbon Steel Bar Specifications

Standard size ranges and supply conditions for round, square, flat and hexagonal steel bars.

Product Size Range Length Surface / Supply Condition
Round Bar Dia. 5–250 mm 3–12 m
Hot Rolled Cold Drawn Turned Ground Polished
Square Bar 5 × 5–250 × 250 mm 3–12 m
Hot Rolled Cold Drawn Turned Ground Polished
Flat Bar Width 12–300 mm
Thickness 3–60 mm
3–12 m
Hot Rolled Cold Drawn Ground Polished
Hexagonal Bar S8–S70 mm 3–12 m
Hot Rolled Cold Drawn Turned Ground Polished
Custom requirements: Custom sizes, cut-to-length services and other surface conditions are available upon request.
Request a Quote
05 / Industrial Applications

Carbon Steel Bar Applications

Carbon steel bars are used across machining, fabrication, construction, automotive and industrial equipment manufacturing.

01

Machinery

Shafts, gears, pins, bushings and mechanical components.

02

CNC Machining

Precision-machined components and automatic screw machine parts.

03

Automotive

Automotive components, shafts, gears and high-strength mechanical parts.

04

Construction

Frames, supports, brackets and general structural applications.

05

Fabrication

General fabrication, welding and metalworking applications.

06

Industrial Equipment

Machine parts, fittings, shafts and industrial components.

06 / FAQ

Frequently Asked Questions About Carbon Steel Bars

Find answers to common questions about carbon steel bar types, grades, sizes, lengths and supply conditions.

What types of carbon steel bars do you supply?
Xtone Metal supplies carbon steel bars in round, square, flat and hexagonal profiles. We also offer selected alloy steel grades such as 4130 and 4140 for higher-strength applications.
What grades of carbon steel bars are available?
Common grades include A36, 1018, 1020, 1045, C45, S45C, Q235, S235JR, 12L14 and 1215. Alloy steel grades such as 4130 and 4140 are also available according to application and specification requirements.
What sizes of carbon steel bars can you supply?
Round bars are available from 5 to 250 mm in diameter. Square bars are available from 5 × 5 mm to 250 × 250 mm. Flat bars are available in widths from 12 to 300 mm and thicknesses from 3 to 60 mm. Hexagonal bars are available from S8 to S70 mm.
What are carbon steel round bars used for?
Carbon steel round bars are commonly used for shafts, pins, gears, bolts, machinery components, automotive parts and general engineering applications.
What are carbon steel flat bars used for?
Carbon steel flat bars are commonly used for brackets, frames, supports, machinery components, fabrication and structural applications.
Are carbon steel bars available in hot rolled and cold drawn conditions?
Yes. Depending on the grade, size and application, carbon steel bars can be supplied in hot rolled, cold drawn, turned, ground or polished conditions.
Can carbon steel bars be supplied in custom lengths?
Yes. Standard supply lengths can be 3–12 meters, and cut-to-length services can be arranged according to customer requirements.
How can I request a carbon steel bar quotation?
Please provide the required grade, bar shape, dimensions, length, quantity and delivery destination. Our team will recommend a suitable specification and provide a quotation.
07 / Request a Quote

Looking for Carbon Steel Bars?

Tell us your required grade, shape, dimensions, quantity and delivery destination. Our team will recommend a suitable specification and provide a competitive quotation.

Grade Shape Size Length Quantity Destination
Get a Carbon Steel Bar Quote